Search your gene variant database of interest

We are pleased to report (25 October 2017) that after a period of three months offline due to necessary software security work that access to the variant data in the three UCL-based enhanced databases (F7, F8 and F9) has now been restored. A few elements of functionality are still not available but these are being attended to as rapidly as possible and we are grateful to all users worldwide for your patience.

You may select either the "enhanced" DB website which contains additional research tools and interpretations, or the LOVD common-format DB website developed in Leiden, if you prefer. The underlying basic genetic and phenotypic data in each DB are identical.